Heads-up, listeners! WPRB‘s Classical Discoveries host Marvin Rosen has a couple nice treats through the day this Wednesday:

Wednesday, July 14, 2010 at 11:00am (EDT) Classical Discoveries Goes Avant-Garde will present the world premiere broadcast of Morton Feldman‘s 21-minute ‘lost work’ Dance Suite [For Merle Marsicano] (1963), recorded by Glenn Freeman, percussion and Debora Petrina, piano-celeste. This is ahead of its September limited-edition release on OgreOgress Records. Originally composed for the dancer and choreographer Merle Marsicano, it was the longest work Feldman had composed to date and provides insight into his upcoming 1964 solo percussion work The King of Denmark. This very unique and haunting sound world, created with various keyboards, mallet instruments and exotic percussion instruments, can later be heard in several of Feldman’s epic length works of the late 1970s and 1980s.

Then from 12:00pm till 2:00pm (EDT), world-renowned Israeli cellist and new-music champion Maya Beiser — whose latest and most excellent CD release Provenanceis riding high in the charts — will join Marvin live in the WPRB Studio to chat and perform.

As always, NYC’ers can tune in directly to WPRB at 103.3 FM on the dial; everyone else can head to the WPRB website and click the “Listen Now” link on the left side of the page.